International Journal of Materials Science and Applications
Volume 5, Issue 3, May 2016, Pages: 143-150
Received: Mar. 15, 2016;
Accepted: Mar. 25, 2016;
Published: Jun. 17, 2016
Views 3623 Downloads 111
Samuel Aggrey-Smith, Institute of Distance Learning, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Kwasi Preko, Department of Physics, College of Science, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
Francis Wilson Owusu, Council for Scientific and Industrial Research, Forestry Research Institute of Ghana, Fumesua, Kumasi, Ghana
The uses of wood and wood-based materials in everyday life ranging from domestic to industrial purposes have called for renewed updating of the information and knowledge on various thermal properties of the materials at various stages and classifications. This paper investigates the thermal properties (specific heat capacity and thermal conductivity) of some selected tropical hard wood species using the method of mixtures and the Lee’s Disk method respectively. The results show that the thermal conductivity of the selected wood species fall within the general range of 0.1-0.8 W/mK for tropical wood materials, with Celtis mildraedii having the least thermal conductivity of 0.08W/mk and Strombosia glaucescens the highest value of 0.392 W/mK. The specific heat capacity was highest for Holorrhena floribunda (1.97 J/g.K) and the lowest for Pterygota macrocarpa (1.01 J/g.K). These results can be used for testing the validity and efficiency of hard woods used for domestic and industrial applications.
Francis Wilson Owusu,
Study of Thermal Properties of Some Selected Tropical Hard Wood Species, International Journal of Materials Science and Applications.
Vol. 5, No. 3,
2016, pp. 143-150.
Radmanović, K; Đukić, I, Pervan 1, S (2014) Specific Heat Capacity of Wood pg 153.
Chudinov, B. S. 1968. [Theory of thermal treatment of wood.] Izdatel’stvo “Nauka”, Moscow, Akad. Nauk, SSSR. p. 37, 70-104. [In Russ.]
Twardowski, K.; Rychinski, S.; Traple, J., 2006: A Role of Water in the Porosity of Groundrock Media. Acta Montanistica Slovaca, Faculty of Drilling, Oil and Gas AGHUST, Krakow, 11 (1): 208-212.
Avramidis, S., and Lau, P. (1992). Thermal coefficients of wood particles by transient heat-flow method. Holzforschung 46 (5), 449-453.
Yapici F., Ozcifci A, Esen R, Kurt S (2011). The effect of grain angle and species on thermal conductivity of some selected wood species, Bio Resources 6 (3): 2757-2762.
Hankalin, V., Ahonen, T., and Raiko, R. (2009). Thermal Properties of a Pyrolysing Wood Particle, Finnish-Swedish Flame Days 2009, January 28-29, 2009, Naantali – Finland.
Ten Wolde, A., Mc Natt, J. D. and Krahn, L. (1988). Thermal properties of wood and wood panel products for use in buildings. DOE/USDA-21697/1. U.S. Department of Energy, Oak Ridge National Laboratory, Oak Ridge, Tennessee: pp 6, 40.
Harada, T., Hata, T., and Ishihara, S. (1998). Thermal constants of wood during the heating process measured with the laser flash method. J. WoodSci. 44: 425–431.
Suleiman, B. M., Larfeldt, J., Leckner, B. and Gustavsson, M. (1999). Thermal conductivity and diffusivity of wood. WoodSci. Technol. 33: 465–473.
Kol, H. S. (2009). The transverse thermal conductivity coefficients of some hardwood species grown in Turkey. Forest Prod. J. 59: 58–63.
Samuel, O. S, Ramon B. O, Johnson, Y. O (2012). Thermal Conductivity of Three Different Wood Products of Combretaceae Family; Terminalia superb, Terminalia ivorensis and Quisqualis indica, Journal of Natural Sciences Research, 2 (4): 36-43.
Ngohe-Ekam, P. S., Meukam, P., Menguy, G. and Girard, P. (2006). Thermophysical characterization of tropical wood used as building materials: With respect to the basal density. Constr. Build. Mater. 20: 929–938.
Daniel, D. P. (2010) “Perfect Wood Win-Door Profiles”, Trace Laboratories, INC 5 North Park Drive Hunt Valley, MD 21030, USA. Pp 1-5.
Griffiths, E., and G. W. C. Kaye. 1923. The measurement of thermal conductivity. Proc. Roy. Soc. London, Ser. A, 104: 71-98.
Kanter, K. R., (1957): The thermal properties of wood. Naukai Tekhnika 6 (7): 17-18. U.S. Dep. Com., Office Tech. Serv. OTS 60-51033.
Wilkes, G. B. and Wood, C. O., 1949: The specific heat of thermal insulating materials. Heat. Pip. Air Cond. 14: 370-374.
Akpabioa, G. T. Georgeb, N. J., Akpanc, A. E. and Obotd, I. B.(2010) Thermal response of some select wood samples for a passively cooled building design pg 26.
Nelkon, M. and Ogborn, J. M. (1985). Advance Level Practical Physics. 4th edition, Heinemann Educational Book, p. 67.
Isachenko V. P., Osipove, V. A. & Sukomei, A. S. (1987) Heat transfer. Moscow: Mir Publishers.
Twideli, J., Weir, T, E and Spon, F. N. (1990). Conductivities of construction and heat insulating materials: London, 1990.
Lewis, W. C. (1967) Thermal Conductivity of Wood-Base Fiber and Particle Panel Materials, Research Paper FPL 77, USDA, Forest Service, Forest Products Laboratory, Madison, Wis.
International Bureau of Weights and Measures (IBWM) (2006), The International System of Units (SI) (8th ed.), ISBN 92-822-2213-6, Wikipedia.org/Heat Capacities).